Add tests for new IO extension

1 files changed, 45 insertions, 0 deletions

diff --git a/t/lib/io_dup.t b/t/lib/io_dup.t
new file mode 100644
index 0000000000..ac1768383a
--- /dev/null
+++ b/t/lib/io_dup.t
@@ -0,0 +1,45 @@
+#!./perl
+
+BEGIN {
+    @INC = '../lib';
+    require Config; import Config;
+    if ($Config{'extensions'} !~ /\bIO\b/ && $^O ne 'VMS') {
+	print "1..0\n";
+	exit 0;
+    }
+}
+
+use IO::Handle;
+use IO::File;
+
+select(STDERR); $| = 1;
+select(STDOUT); $| = 1;
+
+print "1..6\n";
+
+print "ok 1\n";
+
+$dupout = IO::Handle->new->fdopen( \*STDOUT ,"w");
+$duperr = IO::Handle->new->fdopen( \*STDERR ,"w");
+
+$stdout = \*STDOUT; bless $stdout, "IO::File"; # "IO::Handle";
+$stderr = \*STDERR; bless $stderr, "IO::Handle";
+
+$stdout->open( "Io.dup","w") || die "Can't open stdout";
+$stderr->fdopen($stdout,"w");
+
+print $stdout "ok 2\n";
+print $stderr "ok 3\n";
+system 'echo ok 4';
+system 'echo ok 5 1>&2';
+
+$stderr->close;
+$stdout->close;
+
+$stdout->fdopen($dupout,"w");
+$stderr->fdopen($duperr,"w");
+
+system 'cat Io.dup';
+unlink 'Io.dup';
+
+print STDOUT "ok 6\n";